Phase measurement accuracy in digital holographic microscopy using a wavelength-stabilized laser diode

Yueh Long Lee, Yu Chih Lin, Han Yen Tu, Chau Jern Cheng

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

This work describes the influence of coherent illumination on phase measurement accuracy in digital holographic microscopy (DHM). To improve net phase accuracy in a DHM system, the phase referencing and temporal averaging techniques are applied simultaneously to suppress the phase noises caused by the laser source and image sensor. A comparison between a laser diode operated in single- and multi-modes is given to demonstrate the coherence effect on the fringe visibility and the reconstructed phase accuracy of digital holograms. Axial sub-nanometer accuracy in DHM with the fewest successive hologram recordings is performed using a wavelength-stabilized laser diode in single-mode operation.

Original languageEnglish
Article number025403
JournalJournal of Optics (United Kingdom)
Volume15
Issue number2
DOIs
Publication statusPublished - 2013 Feb 1

Fingerprint

Phase measurement
Semiconductor lasers
Microscopic examination
semiconductor lasers
Holograms
microscopy
Wavelength
wavelengths
Phase noise
Laser modes
Image sensors
Visibility
Lighting
visibility
Lasers
recording
illumination
sensors
lasers

Keywords

  • digital holography
  • laser diodes
  • microscopy
  • phase measurement

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Phase measurement accuracy in digital holographic microscopy using a wavelength-stabilized laser diode. / Lee, Yueh Long; Lin, Yu Chih; Tu, Han Yen; Cheng, Chau Jern.

In: Journal of Optics (United Kingdom), Vol. 15, No. 2, 025403, 01.02.2013.

Research output: Contribution to journalArticle

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